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  • Control of energy-saving converters

    A long term study of compensation converters allowed to solve the task of designing the structure, the calculation of its elements, the determination of static characteristics and energy performance. Thus remain undeveloped algorithms of their work to ensure a successful use of compensatory converters and independent control of active and reactive power consumption. An algorithm of their work to ensure the optimal use of compensatory converters. This article contains material from GC № 16.526.12.6016 11.10.2011.

    Keywords: Site load electric network compensation converters; management algorithms ; controlled electric drive with compensation rectifier in section of the direct current of the converter of the frequency

  • Complementarily - Adaptive use tools of intergovernmental relations for the purpose of leveling the socio-economic development of regions

    The current system of intergovernmental fiscal relations , the trends of its development in Russia , including the alignment process , aimed at smoothing the territorial differentiation of socio- economic development of regions. The main task of any state , regardless of the device is to smooth regional disparities through a reallocation of financial resources. In this case, the stability of intergovernmental fiscal relations between the federal center and the subjects of the federation is largely determined by well-functioning system of fiscal federalism. Currently, the budget process is characterized by serious contradictions that arise during the development phase as well as on the stages of implementation of management decisions. Global experience demonstrates the lack of an optimal model of intergovernmental relations . Vertical alignment is the process of achieving a balance between the commitment of each level of government expenditure with the potential of its revenue sources . The tools include the vertical alignment of the fixing of taxes for a certain level , subventions and subsidies, regulating the distribution of income. The horizontal alignment is aimed at providing a unified standard level of consumption of public services to the residents of different regions of the country. With reference to the Russian economic space horizontal alignment problems are quite complex , since there are strong differences in socio-economic development of the regions due to climatic and historical factors .

    Keywords: Complementarily - adaptive tool, budgetary control, fiscal stimulus, active regional policy, economic growth, macroeconomic development

  • Multispectral optical method formation and image processing formation at low contrast hypodermic priori uncertainty skin parameters

    The advanced multispectral method is developed for formation and recovery of the image of a hypodermic on the basis of function of a detuning and its algorithm realizing. The method reduces distorting influence of change of characteristics of skin on image formation. Use of function of a detuning allows to make processing without observance of rigid requirements to the accuracy of a choice of lengths of waves on which images and, respectively, providing a preset value of the relation of values of optical thicknesses of skin are formed.

    Keywords: Restore images, multispectral method, the function of detuning, the optical thickness, the reflection coefficient

  • Long-term monitoring of human respiratory activity

    This article reviews systems of respiratory activity registration in relation to sports medicine. Attention is devoted to the use of miniature accelerometers that record the movement of the chest, as the optimal method for the diagnosis of the respiratory parameters. Other methods are based on piezo-resistive sensors, pressure and airflow sensors, and airways resistance sensors. The authors' developed device based on three-axis accelerometer is proposed. It recognizes episodes of apnea with sufficient accuracy for long-term monitoring. The algorithm of the accelerometer data processing is described. In order to minimize noise impact on the useful signal it is necessary to transform the three-dimensional cloud of accelerometer data into a flat sector. Then the relation of gravity vector deviation angle and the nominal position in time is determined. This presented device due to its ability to transmit data via Bluetooth technology, after appropriate software development for mobile phone and the receiving terminal of medical professional, will be able to organize a simple ergonomic long-term remote monitoring of respiratory activity.

    Keywords: systems of respiratory activity registration, long-term remote monitoring, three-axis accelerometer

  • Model of system of automated management by information service

    In article the structure, functional architecture and mathematical model of the system intended for automated management by information procedures in the automated information system are considered. The offered model is based on monitoring of initial and flowing conditions of the information streams subjected recomposition on the basis of operating markers by the serving router. A system kernel is the Server of configurations supporting discrete disciplines of management by service.

    Keywords: information service, priority management, an information stream

  • Comparative study of the catalytic activity Pt/C and PtхNi/C materials in the oxygen electroreduction

    The catalytic activity of Pt/C and PtxNi/C electrocatalysts prepared by  borohydride methode was studed. It was established that the specific activity  of fresh prepared Pt3,7Ni/C  catalyst  in oxygen  electroreduction  reaction is higher in compare with Pt/C material. After treatment of Pt3,7Ni/C material in the hot acid  nickel in the surface layers of nanoparticles was dissolved and the composition of nanoparticles was changed to Pt5,6Ni. The electrochemical surface area of the Pt5,6Ni catalyst and specific activity was slightly decreased after corrosion treatment. 

    Keywords: platinum electrocatalysts, corrosion stability of the nanoparticles, fuel cells, X-ray diffraction, borohydride synthesis

  • Development of a universal database structure and properties of chemical compounds to build models "structure-property" based on heuristic algorithms

    The problems of building the architecture and design of the database structure for the storage of the structure of the chemical compounds and their analysis using heuristic algorithms
    Proposed the structure of the database that allows you to store information about the structure of chemical compounds with varying degrees of detail. This approach simplifies forming of the structural descriptors used to build models of "structure-property" based on the genetic algorithms.

    Keywords: database architecture, chemicals, data mining, heuristics

  • The information base of textile materials and textures

    Information base of textile textures and materials, with the detailed description of the software for work with base is considered. It is told about methods of creation of base of textile textures and materials and about opportunities of the represented project.

    Keywords: informatsionnno base, textile industry, texture, materials, visualization, software, graphics

  • Evaluating the effectiveness of building software for sonar information systems, using a configurable software framework

    This paper examines the effectiveness of the software framework developed by the authors for the task of  sonar information systems software design. This is done by a theoretical estimate based on the data obtained during the actual production process, as well as practical by rebuilding the software using the skeleton. Fixed a set of indicators on which to judge the complexity and evaluated there . Finally, an assessment of the results of the experiment and draw conclusions about the direction of further research.

    Keywords: software design, sonar information systems framework, performance evaluation

  • Development of modern technical means the technology of preparation of flatted grains

    The article provides information about the regions of the Russian Federation, where the technology of preparation flatted grains for animal feed intensively implemented. The main foreign and domestic producers of grain flattening machine are considered, and also the technical characteristics, advantages and disadvantages of technical means in the Russian market of agricultural equipment are analyzed. The review describes grain flattening machine of the original design to meet the needs of private farming.

    Keywords: flattening, grain flattening machine, breast, private farming, feed nutrients

  • The algorithm of mixed finite element method for solving problems of beam theory

    The mixed finite element method has advantages over classical formulations of Lagrange and Castigliano, and ensures high precision and smoothness approximate solutions for strains and stresses.
    In practice, using the mixed finite element method is limited by high size of linear equation systems, which leads to significant increasing time costs.
    Using the orthogonal finite functions for approximating of unknowns leads to generation of sparse linear systems with a special structure.
    That system can be simplified during solution.
    This article proposes the algorithm of modificated Gaussian elimination for preliminary transformation an extended matrix of linear system.
    This algorithm underlies software complex, which includes LISTSOLVER, the author's solver.
    Confirmed the efficiency of created solver in compare with common-type solver.

    Keywords: mixed finite element method, sparse linear systems, orthogonal finite functions, Gaussian elimination

  • Evolutionary approach to modeling of the distribution processes

    Considered the proposed approach to the allocation of resource flows. The approach developed on the basis of the method of bee colonies. Experimentally determined the dependence of the error of the algorithm of the problem dimension. Shows the dependence of the distribution of resources from a number of iterations, and the power of the swarm, and dynamics approximation of the distribution to the optimum.

    Keywords: optimization, distribution, collective adaptation, evolution, the error of the algorithm

  • Methodological aspects to the assessment of competitiveness in terms of innovation

    In this article, the author has rasmmotreny different approaches to the evaluation of competitiveness in terms of innovation.

    Keywords: competitiveness, meso-level and micro-level, macro-level, the ranking of competitiveness advantages, quantitative and qualitative indicators

  • Algebraic Analysis of Cryptographic Security Systems

    The research of algebraic cryptanalysis method was carried out in this work. Systems of the equations for tables of various sizes of nonlinear transformations of substitution for simplified model of GOST28147-89 algorithm are received, also we solve a one of this systems by a XL method. During this work we produced a program, which has realised a generation and solving of system of equations describing nonlinear transformations of substitution. We analysed a nonlinear systems of equations and calculated a value of complexity of XL method for eight blocks of substitution.

    Keywords: Algebraic cryptanalysis, XL method, nonlinear transformations of substitution, linearization nonlinear systems, Gauss elimination method, a cryptographic key, GOST28147-89 encryption algorithm

  • UV photodetector based on nanorods and zinc oxide films

    With the use of pulsed laser deposition and carbothermal synthesis а photosensitive structure on the basis of the Schottky barrier Au/ZnO(nanorods)/ZnO(film)/ZnO(nanorods)/Au was obtained. The parameters of the carbothermal method of synthesis of nanorods ZnO were optimized. Under directly applied bias of 7V current sensitivity of luminous flux for this photodetector is observed in the UV and visible regions of the spectrum, and is 0.14 A/W - for 325 nm and 0.18 A/W - to 405 nm, which means that this structure has the ability of potential applications in various fields for the control of UV radiation (for example, for the monitoring of solar UV radiation, control of UV radiation in air and disinfecting water devices).

    Keywords: ZnO nanorods, Schottky barrier, photodetector, photosensitivity